PHILADELPHIA—Sooner or later, Michael Vick figured to get injured playing behind the Eagles’ shaky offensive line.

It happened in Sunday’s second quarter, when Vick walked to the locker room with an eye injury and a concussion. There was no immediate word on when, or if, Vick would return.

Michael Vick injury update: A concussion has the Eagles' starting quarterback sidelined for the remainder of Sunday's crucial NFC East matchup with the Cowboys. (AP Photo)

While Vick was being evaluated, rookie Nick Foles entered the game for his first series of the season at the 7:41 mark. Foles was greeted with a huge ovation from the crowd at Lincoln Financial Field. Many Philadelphia fans had been urging coach Andy Reid to make a quarterback change for weeks.

It remained to be seen how Foles would fare, or how long he would get to play. But in a game the Eagles (3-5) desperately needed, Vick was in the locker room, and Foles was in the huddle.

Meanwhile, Eagles receiver Jeremy Maclin also was being evaluated for a possible concussion.